mutation UpsertThreadField($input: UpsertThreadFieldInput!) {
  upsertThreadField(input: $input) {
    threadField {
      id
      threadId
      key
      type
      isAiGenerated
      stringValue
    }
    result
    error {
      message
      type
      code
      fields {
        field
        message
        type
      }
    }
  }
}

{
  "input": {
    "identifier": {
      "threadId": "id",
      "key": "string"
    },
    "type": "STRING"
  }
}

{
  "data": {
    "upsertThreadField": {
      "threadField": {
        "id": "id",
        "threadId": "id",
        "key": "string",
        "type": "STRING",
        "isAiGenerated": true,
        "stringValue": "string"
      },
      "result": "UPDATED",
      "error": {
        "message": "string",
        "type": "VALIDATION",
        "code": "string",
        "fields": [
          {
            "field": "string",
            "message": "string",
            "type": "VALIDATION"
          }
        ]
      }
    }
  }
}